docs(changelog): Added changelog automation

package.json

@@ -6,7 +6,8 @@
   "scripts": {
     "compile": "babel -d lib/ src/",
     "prepublish": "npm run compile",
-    "test": "npm run compile && mocha --compilers js:babel-core/register"
+    "test": "npm run compile && mocha --compilers js:babel-core/register",
+    "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s -r 0"
   },
   "author": "John Granström <[email protected]>",
   "license": "MIT",
@@ -24,6 +25,12 @@
     "babel-core": "^6.22.1",
     "babel-preset-es2015": "^6.22.0",
     "chai": "^3.5.0",
+    "cz-conventional-changelog": "^1.2.0",
     "mocha": "^3.2.0"
+  },
+  "config": {
+    "commitizen": {
+      "path": "./node_modules/cz-conventional-changelog"
+    }
   }
 }